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LinearBPM
这是一个简单的FFT为无电位1 +1 +1 Ð 薛定谔方程的光束传播方法。如果该软件灵活，允许引入的术语（如果是极少数需要包括色散效应高阶导数）。例如，如果一个人渴望解决的一个方程的形式：
（四/ dz的+ Ð ^ 2/dx ^ 2 - 0.25 * Ð ^ 3/dx ^ 3）== 0 Ÿ
它可以解决使用以下代码：
Ž = linspace（0,1,512）
x = linspace（-5,5,1024）
psi0 =进出口（- x的。^ 2）
Ð = D_lateral1D（十，2）-0.25 * D_lateral1D（十，3）
字段= LinearBPM（psi0，有D，Z）
凡D_lateral1D是一个函数，提供“取代”的微分算子。
这个函数是在一个非线性的BPM，我曾对（分步，谱方法等），将提交给我，当我完成他们的文件和组织功能更复杂的设置非常初期阶段。
(This is a simple FFT based beam propagation method for potential-free 1+1+1D Schrodinger equation. The software if flexible and allows to introduce high-order derivatives in the term (very handful if is needed to include dispersion effects). For example, if one desires to solve an equation in the form:
(d/dz+ d^2/dx^2- 0.25*d^3/dx^3)Y == 0
It can be solved using the following code:
z=linspace(0,1,512)
x=linspace(-5,5,1024)
psi0=exp(-x.^2)
D=D_lateral1D(x,2)-0.25*D_lateral1D(x,3)
field=LinearBPM(psi0,D,z)
Where D_lateral1D is a provided function that "replaces" the derivative operator.
This function is a very early stage in a more complex set of non-linear BPM functions that I have made (split-step, spectral methods, etc.) and I will submit them when I finish their documentation and organization.
Sorry for my English, I m eager for your comments.
)
- 2010-07-05 12:02:42下载
- 积分：1
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xin
说明： 此程序是针对汉字的分割，所编写的程序，必须在预处理后进行才能准确的对汉字进行分割(This program is for the character of the division, the written procedures must be accurate after pretreatment of the character segmentation)
- 2010-04-26 15:03:21下载
- 积分：1
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AUSM-FOR-CIRCULAR-BODY-FLOW
AUSM求解半圆面NS方程(海平面参数)(AUSM METHOD FOR CIRCULAR BODY FLOW WITH SEA-LEVEL CONDITION)
- 2013-01-05 17:32:12下载
- 积分：1
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MATPOWER-OPF-slides-zimmerman
this is an explanation about matpower
- 2020-09-02 03:28:08下载
- 积分：1
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mbook1
matlab学习很好的书籍，可以全面学习基本用法，数据处理和图形显示。书籍讲解比较全面(The matlab Learning good books, can fully learn the basic usage, data processing and graphics display. More comprehensive books explain)
- 2012-08-27 09:01:56下载
- 积分：1
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FINDFILE
Recursive File Search
Purpose: Traversal across an entire hard drive
The SearchForFile function should work in any program provided you include the PROTO
below.
Note: This is a console mode program and builds with Project|Console Assemble & Link
- 2014-02-18 20:21:14下载
- 积分：1
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duoxiaoshizuixiaoerchengfa
基于数值分析方法的多项式最小二乘法拟合，matlab(Polynomial least squares fitting based on numerical analysis method)
- 2018-05-07 20:15:25下载
- 积分：1
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非线性动力学-分岔图-混沌-程序
说明： 上海交通大学非线性动力系统的分岔图绘制实例，非常简单好用。(The example of drawing bifurcation diagram of non-linear dynamic system in Shanghai Jiaotong University is very simple and easy to use.)
- 2021-03-17 16:49:20下载
- 积分：1
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ch03
Explains you about how to manage the projects i.e., PROJECT MANAGEMENT
- 2010-01-19 15:31:34下载
- 积分：1
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echo
image filters it is aplied to the image to enhance image and more over predefine tools is given.
- 2011-02-01 19:13:25下载
- 积分：1
